# NTSB CHI88LA172: Aeronca 7AC, N83430, Greenfield, IN, July 23, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 23, 1988, 11:30 local (16:30 UTC)
- Place: Greenfield, IN
- Coordinates: 39.789657, -85.769142 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.7897&lon=-85.7691&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 26, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 14120
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI88LA172
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14120/pdf
- Page: https://openairdocs.org/ntsb/CHI88LA172

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing - flare/touchdown
  - aircraft handling - abrupt, dual student (cause)
  - lack of total experience in type operation, dual student (contributing factor)
  - supervision - inadequate, pilot in command(cfi) (cause)
- Main gear collapsed, landing - roll
  - landing gear,main gear - overload

## Analysis

DURING A DUAL INSTRUCTIONAL FLIGHT FOR PURPOSE OF PRACTICING LANDINGS IN A CONVENTIONAL GEAR AIRCRAFT, THE STUDENT PILOT ABRUPTLY NOSED THE AIRCRAFT TOWARD THE TURF RUNWAY. THE INSTRUCTOR PILOT DID NOT TAKE REMEDIAL ACTION AND THE AIRCRAFT STRUCK THE GROUND, COLLAPSING THE MAIN GEAR AND SKIDDING TO A HALT, NOSE DOWN, ON THE RUNWAY.

## Aircraft

- Registration: [N83430](https://openairdocs.org/aircraft/N83430), registered now, S/N 7AC-2097, built 1946 (OpenAirDocs)
- Reported make and model: AERONCA 7AC
- Registry model: [Aeronca 7AC](https://openairdocs.org/model/aeronca-7ac) (registry code 2110102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7AC 2097
- Airframe hours: 6661
- Engines: CONTINENTAL C-65-8 65 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Thomas, Charles E.
- Registered owner: Thomas, Charles E.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 12, 1988, 17 hours before
- Airport: GFD, Pope Field, runway 18, 2,000 × 150 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: rear; flight hours: 4,638 total, 41 in this make and model, 4,463 as pilot in command, 115 in the last 90 days, 41 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 340° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 59 °F
- Altimeter: 30.00 inHg
- Observed at: IND, 26 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19880723027789A](https://openairdocs.org/incident/19880723027789A), Jul 23, 1988: Bbavia 7AC, Greenfield, IN, Substantial damage. Nosed up on runway during attempted wheel landing by student. CFI was unable to stop abrupt forward control.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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